Pneumatic well



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Inventarn @@Ze ,Zi-,56% 'Z'T 4 1 l By Q :4170 ne] Patented May 22, 1928.

UNITED Ns'rnrnsv esta a nu WITLOF Gommone, OKLAHOMA.

iuuaztuunrro` WELL.

Application led January 3, 41925. Serial No. 158,662.

This invention relates to an improved pneumatic well wherein a column of Vair under pressure is ejected into the well casing for elevating the fluid through the tubing.

. The novelty of the improvement resides in the provision of novel air actuated means for elevating the fluid through ,the tubing fat desired intervals of time.

Briefly, the invention has reference to` a structure which includes, among other parts, acasing having` an enlarged housing located between the lower end-ofthe casingv and the perforated anchor at the bottom of the equipment, there being upper and lowei` partition members located in this housing to forni a duid receiving chamber. In this chamber is a float slidably mounted upon the valve end of the tubing which depends into the chamber. The float is moved downwardly by air pressure injected into the casing, in" order'to force the fluid from the chamber through intake ports in the tubing.

One feature 'of construction is the lower partition `member formed at the bottom of the housing, the same ybeing in itself, madeup of upper and lowerA walls of somewhat conical form, and thereV beingy a central guide formed in which a iuid'valve seatand carrier is located.

Another `feature of construction is the valved tubing-which servesas aconveyor for the fluid being elevated and which has its lower engl slidably mounted, inthe guide in said partition member ina man-ner to control tlhe iluid valve. p p

Other features 'and advantages of the invention will become apparent from the fol-` lowing description and" drawing.

In the accompanying' drawingv forming a part' of'this application and in which like numerals are employed"`to designate like parte' throughout the same: lligure` l is' a longitudinalsectlon through a structure constructed" in accordance `with the present invention.

Figures 2 and il are horizontal sections taken approximately upon the plane oit lines 2 2 and 3-3, respectively, o'r' Figure l.

Referring now to the drawing detail', it will be seen that the lowermos't sect-ion of the casing is designated by the reference character l. 'This is preferably connected with the art 2 which is,' for convenience, referred to as the housing. rllhis, housing 1s actually made upofa central cylinder, and upper' and: lrwvenfl reducing sections 4e and o,

respectively. The section 5 ispivotallyconnected to the customary' apertured anchor 6. All the parts are connected together by coupling rings 7. VThe fluid elevating tubingr is generally designated by the reference character 8, andl this, of course, extends down into the casing and housing in spaced f relation as represented. Before considering the specific construction of the tubing I wish todirect attention to the fact that the aforesaid fluid receiving chamber is designated generally by the reference character 9, and

this is formed by the presence oa partition plate 10 clamped between the parts 3 and 4f, and provided with apertures; together with a lower partition or closure member `11.

The latter is formed vintegral withthe bot tom of the cylinder or part 3. It comprises a lower cone '12 of imperforate orm, a. smaller upper cone 13 and a iiange 14 having apertures4 l5 formed adjacent its periphery. Thesecones-are connected bya neck 16 pro vided with fluid ports 17. The upper portion ont the neck which operates as a guide.

is smooth, and the lower portion is internaliy screw threaded. Tapped into this screw threaded portion is a valve mounting and carrier I8, the upper end of which is formed into a valve seat, the lower end of whichv is provided with fluid intake ports 19. The valve is represented' at 2O andrests upon the seat and includesa stem' 21 extending down through an openingin the bottom of the carrier 18. A spring surrounds this stem and servesto normally unseat or open the valve' in order to uncoverports v17. 'An annular float of suitable material 22 is located for sliding movement in the chamber.

y The tubing includes a pipe section 23 carl ryingfa spider. 24; This spider has4 a central depending valveV stop withk which the ball check valve 25 cooperates. The ball" check valve is seated-upon the valve seat. formed atthe upper end of the fitting 26. Connected to thisiittingis a pipe section 27 closedat of the tubing is `employed for closing'the valve20. VThis valve is normally unseated. It followsV also that the tubing is consequently elevated by suitable means, and held in elevated position vto allow the spring to un-V yseat the valve 20. This valve 20 is slidably mounted in `the guide formed by the neck ly* in the chamber, displacingthe fluid from i the chamber through the intake port in the tubing.,` It is thereby elevated in .the tube,v

unseating the valve 25. and vrising upwardly in a well knownmannenj ,Before the air is turned'on,the tubing was ofcourse lowered so that its weightv was `lbrought to bear,` upon.

the valve`20, in order to close the valve 20.

In thecourseoff its downward ymovement the iloat comes into contact with the' washer and forces y the washer down against .the Vpressure of thecoil spring 29. `The downward movement of the washerv and float continues until the washerI rests on top of the part. 1,3,the

. floatbeing atthis level permits vthe com- Vpressed j, air to passthrough the perforations on lthe tubing,forcing all of the fluid from thet tubing. Obviously, `when the tubing is againlifted and the valve 20 opened, the iluid repeats the operation of entering the chamber, and elevating 'the float 22 to the position shown in the drawing.

.'When ythe air, under pressure is fed dowiry wardlythrough thecasing it passes through the holes inthe partition 10. In'so'doing it forces the float '22' downwardly inthe chamber. `The purpose claimed for this float is that* it assists thexfluid to retain its surface tension andpermits the fluid in thevchainber or central cylinder 3 to pass tlirough'tlie intakeports in the tubingwithout breaking up thesolid` body of iluid withl air or gas pockets which *would occur yil the air 'pressure would strike an unprotected fluid surface.,

When the'vioat 22 enga-ges thedisk, 28, compressing the spring 29, no value or good is claimed directly toward the removal of the fluid.v However, when action of removal of lui'dfrom the well has been completed and pressure from central `cylinder 3 removed, the spring assists materially inassisting incoming fluidintothe cylinder 3 to raise float.Y f. l t

A. vcertain amount otforeign substance always found in deep wells, This Substance or grit would naturally collect in the bottom Vget, stuck in bottom of cylinder 3.

ofthe cylinder.v 3. lIl? we did not provide a spring 29, it is possible that the float woilld e disk or washer 28 is simply a convenient part on` which. the lioat might rest as it comes in contact with the spring 29.

Itis believed that persons skilled in the art to which the invention relates will be able to obtain a clear understanding otV the 'Y construction and operation of the invention from the foregoingdescription considered in connection with Vthe drawing. Y In view oi this, a more lengthy :description yis thought unnecessary. f t l l t, .v 3

yMinor changes coming within the `tield of invention claimed may beresorted to if desired.v.,.': Having thus described theinvention, what Iclaim isz-j- L 3' 1. In a well structure of the class described, aywell casing .including `a housing provided with a valved lluid receiving chamber, an air pressure operated float mounted,

in said chamber, and valved tubing disposed withinthe casing. and depending intofthe housing] and, mounted for' controlling the 4valve in saidlchamber. y l v A v 2. In.l la vw-ell `structure ofthe class de scribed, a wellcasing, an aperturedanchor, andan enlarged housing interposed between and connectedwith the casing and anchor, upper and lower .partition members located in said housing and formulating afluid ref ceiving chainlzier,v a spring 'opened valve cooperablelwitlithe lower partition member,

vided with a guide and fluid passages, and a valved'y fluid. conducting tube structure depending `through the casing-and into :the housing and having its lower end slidably. mounted iii said, guidel infaposit'ion to rest upon said.y valvefor closing the latter against the tension of its spring, together with a float slidably mounted in said .chamber` and'sur# roundingsaid tube...r i t t p ,y

3. In a 'well'. structure of the. class described,` a well casing, an apertured anchor, a housing interposed between'and connected with the casing andran'chor, upper and lower verticallyV spaced partition members 'mounted in said housing and forming a fluid receiving chamber` therebetween, the upper partition member being formed with4 air ports, the lower member embodying yvertically spaced upper `and lower parts connectsaid last namedvpartition member being proed together at theirv central portions by a cylindrical neck, said neck ,functioning` .additionally `,as,`a gu,ide, a valve carrier tted into said neck and provided ywith a valve seat andfluid intake ports, a spring opened valve mounted upon the ,carrier fand cooperable with `said seat, said neck and .uppery part oi` the partition member being provided with cooperating fluid ports, said upper partition member being formed with a guide opening ing the valve down upon its seat, the tubing-l beinv provided with fluid intake ports disposed within the area of said chamber.

4. In a well structure of the class de-V scribed, a well casing, an apertured anchor, an enlarged housing interposed between the lower end of the casing and anchor and connectedrespectively with the casing and an- Chor, said housing being of cylindrical cross section, upper and lower partition members located in the housing and forming a fluid receiving chamber therebetween, the upper partition member being formed with air holes and a central guide openingT the lower partition member being provided with fluid intake ports and a central guide, a spring opened valve carried by the lower partition member for controlling the entrance of fluid into said chamber, and fluid conduct-ing and elevating tubing depending through said casing and into said chamber, a check valve located in the lower portion of the tubing, Said lower portion including a pipe section closed at its bottoni and having said closed bottom extending into the guide in said lower partition member and adapted to rest upon said spring opened valve for closing said valve, said lower sectionvbeing provided with fluid intake port-S, a spring Vpressed washer slidable on said pipe section, and an annular iioat located in said chamber and also slid-,

able upon said lower section. l In testimony whereof I aiiix my signature.

GALE B. DE WITT. 

